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<?php |
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namespace Jasny\Twig; |
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/** |
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* Expose PHP's array functions to Twig |
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*/ |
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class ArrayExtension extends \Twig_Extension |
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{ |
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/** |
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* Return extension name |
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* |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return 'jasny/array'; |
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} |
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/** |
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* Callback for Twig |
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* @ignore |
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*/ |
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public function getFilters() |
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{ |
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return [ |
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new \Twig_SimpleFilter('sum', [$this, 'sum']), |
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new \Twig_SimpleFilter('product', [$this, 'product']), |
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new \Twig_SimpleFilter('values', [$this, 'values']), |
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new \Twig_SimpleFilter('as_array', [$this, 'asArray']), |
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new \Twig_SimpleFilter('html_attr', [$this, 'htmlAttributes']), |
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]; |
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} |
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/** |
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* Calculate the sum of values in an array |
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* |
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* @param array $array |
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* @return int |
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*/ |
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public function sum($array) |
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{ |
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return isset($array) ? array_sum((array)$array) : null; |
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} |
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/** |
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* Calculate the product of values in an array |
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* |
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* @param array $array |
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* @return int |
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*/ |
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public function product($array) |
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{ |
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return isset($array) ? array_product((array)$array) : null; |
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} |
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/** |
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* Return all the values of an array or object |
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* |
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* @param array|object $array |
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* @return array |
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*/ |
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public function values($array) |
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{ |
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return isset($array) ? array_values((array)$array) : null; |
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} |
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/** |
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* Cast value to an array |
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* |
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* @param object|mixed $value |
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* @return array |
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*/ |
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public function asArray($value) |
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{ |
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return is_object($value) ? get_object_vars($value) : (array)$value; |
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} |
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/** |
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* Cast an array to an HTML attribute string |
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* |
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* @param mixed $array |
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* @return string |
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*/ |
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public function htmlAttributes($array) |
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{ |
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if (!isset($array)) { |
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return null; |
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} |
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$str = ""; |
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foreach ($array as $key => $value) { |
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if (!isset($value) || $value === false) { |
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continue; |
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} |
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if ($value === true) { |
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$value = $key; |
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} |
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$str .= ' ' . $key . '="' . addcslashes($value, '"') . '"'; |
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} |
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return trim($str); |
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} |
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} |
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jasny /
twig-extensions
